Abstract: Are disclosed a method for producing a decorative metallic article and the decorative metallic article, used in jewelry goods, ornaments, clothing accessories or the like, the decorative metallic article being produced by joining a silver alloy composition for firing which comprises silver or a silver alloy to another composition for firing which comprises copper or a copper alloy.

Abstract: Provided are a method for producing a decorative metallic article with a wood grain metal pattern and the decorative metallic article with the wood grain metal pattern; the decorative metallic article comprising a sintered copper part produced by sintering a plastic copper containing clay compound, and a sintered silver part produced by sintering a plastic silver containing clay compound.

Abstract: A method for producing a sintered copper article for craft or decorative use made of copper or a copper alloy which can be sintered in the air by using a general heating furnace, and a plastic copper containing clay compound are provided. The method for producing the sintered copper article for craft or decorative use of the present invention comprises the steps of forming a shaped copper object using the copper containing clay compound which includes at least one kind of a powder selected from a copper powder or a copper alloy powder that contains copper in 50 wt % or more together with an organic binder, and subsequently sintering the shaped copper object, thereby to obtain a shaped copper sinter. Herein, the mean particle diameter of the powder included in the copper containing clay compound is restricted to 10 ?m or less, whereby the shaped copper sinter is obtained by sintering the shaped copper object in the air.

Abstract: Provided are a method for producing a decorative metallic article having a wood grain metal pattern and the decorative metallic article having the wood grain metal pattern; the decorative metallic article comprising a sintered copper part produced by sintering a plastic copper containing clay compound, and a sintered silver part produced by sintering a plastic silver containing clay compound.

Abstract: A composition for precious metal sintering that yields a precious metal sinter for use in jewelry, ornaments, accessories, etc., by sintering, especially that realizes not only production of a precious metal sinter even when the precious metal content per volume of the composition for precious metal sintering is reduced but also in a striking reduction of the weight of the precious metal sinter. Further, there are disclosed a process for producing the precious metal sinter and the precious metal sinter. This composition for precious metal sintering is characterized by comprising a mixture of precious metal powder, hollow glass powder and organic binder solution.

Abstract: A clay composition for shaping noble metal is formed of a kneaded mixture of a mixed powder of noble metal having as main components thereof 30 to 70% by weight of a powder having an average particle diameter in the range of 2.2 to 3.0 ?m and 70 to 30% by weight of a powder having an average particle diameter in the range of 5 to 20 ?m with an aqueous solution of an organic binder.

Abstract: A clay composition for shaping noble metal is formed of a kneaded mixture of a mixed powder of noble metal having as main components thereof 30 to 70% by weight of a powder having an average particle diameter in the range of 2.2 to 3.0 &mgr;m and 70 to 30% by weight of a powder having an average particle diameter in the range of 5 to 20 &mgr;m with an aqueous solution of an organic binder.